2011届高考英语一轮复习系列：倒装句（测试卷）
2、So difficult ________ it to acquire a large vocabulary without the help of a teacher that he was close to giving up.
A．he have feltB．have he feltC．he did feelD．did he feel
【答案】 D
【解析】在so...that结构中，若将“so＋adj/adv”置于句首，所在的句子用部分倒装语序，故可排除A、C两项；根据句意以及that后面句子所用时态可知D项正确。
